Apparatus for the manufacture of artificial silk



Jan. 28, .1936.'

APPARATUS FOR THE R. ETzKoRNV l 2,029,226 MANUFACTURE 0F ARTIFICIAL SILKFiled March 15. 1932 a@ l I Patented Jan. 28, 1936 APPARATUS FOR THEMANUFACTURE F ARTIFICIAL SILK Application March 15, 1932, Serial No.599,051

. In Germany March 27, 1931 9 Claims.

My present invention relates to an improved method of and apparatus forthe respooling of artificial thread and the like.

In the manufacture of articial silk and the like 5 by the spool spinningmethod, a suitable cellulosic solution is spun into a coagulating bathor other hardening medium and collected on spools. The thread is thensubjected to several wet treatments, including washing, and then dried.Thereafter l0 the thread is respooled onto a suitable take-up rollersuch as a twisting spool. Since spools of large diameter, preferably ofa diameter of more than 200 mm., are now being used. To insure a neatand clean winding, the respooling speed may be increased to about 500 to1,000 meters a minutc.

It is accordingly an object of my present invention to provide a newapparatus for the rewinding of artificial thread from spools of largediameter to a suitable take-up means.

A further object of my present invention is to provide suitable meansfor holding spools of thread during the respooling operation.

l A still further object of my present invention is to provide suitableconstructions for holding spools having a plurality of yarn bodies woundthereon, during the respooling operation, which will permit either thesemi-automatic reversal of the spool after the doiiing of one of theyarn bodies or the ready removal of the spool so that it may be replacedready for the doing of the second yarn body.

These and other objects of my present invention will become moreapparent from a study of the following description and by reference tothe annexed drawing in which:

Fig. 1 is a side elevation of one form of the invention, and

Fig. 2 is a part sectional and part side elevation- 40 al view of-amodified form of the invention.

Referring now to the drawing in which like numerals of referenceindicate like parts, semi-automatic spool holding means are shown whichhold the spool pivotally, allowing one yarn body 45 to be-placed in theunwinding position while holding another yarn body in readiness to beswung into position on the completion of the unwinding of the first. Bythe term semi-automatic is meant the release of the spool by the 50latching member 4I in Figure l and the latching member 5l in Figure 2.lIhese latching members -are only released after the yarn has been drawnoff the lower end of the spool. It is therefore readily seen that byreleasing the spool the heav- 55 ier end, i. e., the upper portion stillcarrying yarn,

will automatically pivot downwardly in position. Secured to the centralportion of the spool is a ring provided with oppositely positionedbearing members 36. The tongs 31, 31', pivotally secured to the rod orshaft 38, are provided at their ends 5 with upstanding members 39 inwhich are journalled the bearing members 36. To prevent the rotation ofthe spool as the yarn body 40 is unwound, I have provided a latchingmember 4l slidably mounted on the vertical section 42 of tong l0 31 andwhich engages rthe upper rim of the spool. Thus, after the yarn body 40has been unwound all that is necessary, to swing the upper yarn body 42into winding position is to slide the latch out of locking position andthe spool will pivot by 15 gravity about the horizontal axis of thespool.r

In Figure 2 the spool holding means comprises a pair of brackets 43, 43'rigidly secured to the shaft or rod 44 and together form means forsuspending the spool 45 therebetween. The ends of 20 the brackets areprovided with inwardly extending pintles 46, 41 which engage inoppositely disposed openings 48, 49 formed in the spool. To insure theeasy removal of the spool from the holding means the pintle 41 isslidably mounted in a bear- 25 ing formed in the lower end of thebracket 43 and is provided with a knob 50 whereby the pintle may beremoved from engagementV with the opening 49. A latch 5| is slidablymounted on the bracket 41 and engages the spool to prevent the 30 samefrom tipping. The operation of the device is identical to the operationof the construction shown in Figure 1.

From the above description it will be appreciated that I have providedsuitable construced tions for holding or suspending the spool during therespooling operation, which will avoid breakage of the thread during thedoing operation.

Although I have described several embodiments of my invention it isobvious that each embodi- 40 ment is susceptible of many minor changeswithout departing from the spirit of my invention.

I, therefore, wish it to be understood that my invention is to belimited only by the scope of the appended claims. 45

What I desire to claim is:

1. A support for a spool having a ring secured thereto and carryingoppositely disposed lugs, comprising a shaft, a pair of levers pivotallysecured thereto, the outer ends of said levers being provided withbearing surfaces lfor said lugs, whereby said spool may be pivoted aboutits horiz'ontal axis.

2. A support for a spool having a ring secured thereto carryingoppositely disposed lugs, comprising, a shaft, a pair of leverspivotally secured thereto, the outer ends of said levers being providedwith bearing surfaces for said lugs whereby said spool may be pivotedabout its horizontal axis, and means slidably secured to one of saidlevers for engaging vsaid spool to hold the same stationary in operativeposition.

' 3. A support for a spool having a ring secured thereto carryingoppositely disposed lugs and having wound thereon a plurality of yarnbodies, comprising a shaft, a pair of levers pivotally secured thereto,the outer ends of said levers being provided with bearing surfaces forsaid lugs, whereby when the lowermost one of said yarn bodies has beenunwound the spool may be pivoted about its horizontal axis to swinganother of said yarn bodies into operative position.

4. A support for a spool having a ring secured thereto carryingoppositely disposed Alugs and having wound thereon a plurality of yarnbodies, comprising a shaft, a pair of levers pivotally secured thereto,the outer ends of said levers being provided with bearing surfaces forsaid lugs, whereby when the lowermost of one of said yarn bodies hasbeen unwound the spool may be pivoted about its horizontal axis to swinganother of said yarn bodiesintofoperativ'e position and' means slidablysecured to one of said levers for engaging said spool to hold the samein operative position.

5. A support for a spool comprising a shaft, spool suspending meanssecured thereto for engaging said spool, and means slidably secured tosaid spool suspending means to hold said spool stationary in operativeposition.

6. A support for a spool comprising a shaft, a bracket having inwardlyprojecting lugs rigidly secured thereto, said spool being provided with5 centrally located oppositely disposed openings into which said lugsextend, one of said lugs being movablewhereby the spool may be removedfrom said bracket.

'7. A support for a spool comprising a shaft, a 10 bracket havinginwardly projecting lugs rigidly. secured thereto, said spool beingprovided with centrally located oppositely disposed openings into whichsaid lugs extend, one of said lugs being movable whereby the spool maybe removed 15 from said bracket, and means slidably secured to saidbracket and engaging with said spool to hold the same stationary inoperative position.

8. In a device for use in the manufacture of yarns of articialorigin,comprising, in combi- 20 nation, a supporting means, a spool pivotallysupported thereby intermediate its ends whereby the position of saidspool may be reversed, said spool having a plurality of yarn bodieswound thereon.

9. In a device for use in the manufacture of yarns of artificial origin,comprising, in combination, a supporting means, a spool pivotallysupported thereby intermediate its ends whereby the yposition of saidspool may be reversed, said spool 3\0 i having two yarn bodies woundthereon.

RUDOLF ETZKORN. Y

